Finding the Third Proportional to 203,840 and 479,624

Step by Step Solution

1. Step 1: Write the proportion equation
   203,840 : 479,624 = 479,624 : x
2. Step 2: Convert to fraction form
   203,840/479,624 = 479,624/x
3. Step 3: Cross multiply
   203,840x = 479,624 × 479,624
4. Step 4: Simplify right side
   203,840x = 230,039,181,376
5. Step 5: Solve for x
   x = 230,039,181,376/203,840
6. Step 6: Final answer
   x = 1,128,528.17